13-2a.cpp

C程序设计（第3版）程序源代码,提供你最丰富的实际代码

#include <stdlib.h>
#include <stdio.h>
      main( )
       {FILE *in,*out;
           char ch,infile[10],outfile[10];
           printf("Enter the infile name:\n");
           scanf("%s",infile);
	   printf("Enter the outfile name:\n");
           scanf("%s",outfile);
           if((in=fopen(infile,"r"))==NULL)
             {printf("cannot open infile\n");
                exit(0);
              }
         if((out=fopen(outfile,"w"))==NULL)
          {printf("cannot open outfile\n");
                exit(0);
              }
         while(!feof(in))fputc(fgetc(in),out);
         fclose(in);
         fclose(out);
        }